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The Eye

Miss Weller

Do you know the parts of the eye and their function?

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Across
1.dark layer of the eye where blood vessels are found
3.region of the retina where there are no light receptors
5.coloured muscles that adjust the size of the pupil
6.used to adjust the thickness of the lens
8.the bending of light as it passes through the eye
10.an action that is rapid and involuntary
12.tough and white outer layer of the eye
15.the layer of cells containing light receptors
16.area of the retina with a high concentration of cones
17.the ciliary muscles relax when we are looking at these objects
18.shape of the len
19.these muscles contracts to dilate our pupils
Down
2.where the sensory neurones leave the eye
4.attaches the lens to the ciliary muscles
7.the receptors that are able to detect coloured light
9.in bright light the pupil does this
11.transparent section of the sclera
13.the receptors that work best in dim light conditions
14.the hole in the iris that allows light to enter the eye

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